Abstract:Though the construction scale of tramcar transportation in China becomes larger and larger, the design of track and subgrade is at the exploratory stage. Tramways with 3-4 years’ operations from three different cities in China were explored in this study. Site investigation showed that at rail -highway crossing, cracking and breakage for bituminous concrete pavement around track were easily generated, and differential settlement for pavement and track was easy to be seen. Edge damage for the pavement at the sides of the rail was also includ- ed. Settlement of rail surface in some sections resulted in scratch between the axle box and objects under the axle box. Cracking and breakage for highway pavement were generated at the top of fastener cover. Unreasonable tramway foundation stiffness transition caused the fastener loose. All the track disease inducements were ana- lyzed and corresponding prevention and control suggestions were given, such as adding precast reinforced con- crete plate wrapped with profile steel on both sides of the rail, setting the rubber block between the rail and concrete plate, matching design between tramway and pavement, and strengthening the subgrade for both tramway and highway.